Jewelry-polishing device.



No. 881,583. v PATENTED MAR.10, 1'908.

., c. H. HODGKINS.

JEWELRY romsnme DEVICE.

APPLICATION FILED MAR. 25, 190?.

A ow/V5 Y5 citizen of the United States, residin CURTIS'I-I. HODGKINS, Oh; A'lTLEBORl), MASSACHUSETTS.

JEWELRY-POLISHING :onvron.

no. senses. Specification or LettersPatei'it. Patented'Mai'ch 10, mos.

' Application filed March 25,1907. L Serial No. 36%,34.

To all whom it may concern:

Beat known'that I, Gnarls H. .Honoxms, a at Attic bore, in the county of Bristol any State of Massachusetts, have invented anew and use-' fol Jewelry-Polishing Device, 01. which the following is a specification.

lily present invention relates to olishing devices, and more es ecially to t-lat class adapted for use in p0 ishing and-burnishing jewelry. and similar small objects while they are immersed in a suitable cleansing solution,

in a relatively short are subjected to the; actions: a suitable and it has for its Obj. to provide a device of this character that is capable of polishing or hurnisliing a considerablequantity of jewelry time, the receptacle for the jewelry being immersed in a suitable cleansing solution and having its interior so formedthat the articles being operated on are subjected to a tumbling and. rolling action that will insure the exposure of everysurface thereof to the polishing medium, so that uniformity in "the polishing and burnisliing is secured.

Furthermore, it has for its object to pro-. vide a deviceof thisch'aracter that is so simpic that it may be constructed. cheaply and is not liable to need repairs, and therece tacle for the articles to be olished is readi yaccessible and remov abl to permit introduc-' tion and removal of the articles before and after the polishing and burnishing operation.

To these and other ends, the invention comprises the various novel features of construction and arrangement of parts hereinaf= tor-more fully described and ointed out particularly in theclaiins ap enc edhereto.

In the accompanying drawingsb l igurel represents a central vertical section of a polishing or burnishing machine constructed in accordance with. my present invention. Fig. 2 is perspective vlewof the oscillatory recep-s tacle for the articles to be polished orbur nished. Fig.3 is a detail View of an o crating crank and its latch for detachably locliing-the receptacle thereto." Fig. 4. isa sectional view of thecooperatinq portions of the crank arm and the trunnion lor the receptacle.

Corresponding parts in theseveral figures are indicatedpthroughoutiby' similar characters of reference. ,1

The machine shownin thepre'sent embodi-j meat of my 'invent'on is of that type wherein thearticles whilebbhxgpolish'ed or burnished ce-ieeg W s solution, and it comprises,

in the present instance, a tank 1 of any desired or suitable dimensions and provided with a 'lid2 for controlling access thereto, the tank being supported on legs or other means ol' support 3. 7 7

The receptacle for the articles to be polished or burnished is mounted to 0 create uithin the-tank, the receptacle embodying, in

the present instance, a hollow box or casing 4 preferably of .a polygonal form, the box shown in the present instance being in the form of a hexagon. One of thesides, as 5, is hinged at its edges, as at 6,in order to permit access to the box or receptacle in order to permit introduction or removal of the objects to be polished. relatively thereto, some suit.- able means such as a catch30 being preferably rovided for securing the door thus provide'd in closed position during the polishing or burnishing operation. The sides of the box are provided with one or more openings 7 covered by a ire net or gauze 8 to permit entrance and exit of the washing or cleansing solution, the wire gauze or mesh serving to prevent loss of the jewelry or other articles. The inner surfaces of thesides of the box or receptacle are provided each with a plurality of inwardly extending ribs 9, the ribs 011 one side of the box having a'pitch or inclination toward one end of the box, While those on the next adjacent side have an inclination or pitch leading toward the opposite end of the box, the ends of the several ribs of each series abutting those of the next series to .form substantially continuous zig-zag ribs texte'nding around the inner side of the box or receptacle.

The rear head of thebox is provided with an axially arranged trunnion 10 having a j ournal thereon adapted to cooperate with the conical recess 11 formed in a bearing block 12, the latter being secured to the rear of the tank. The other head of the box is provided with a trunnion 13 having a reduced'end. 14 that is angular in cross section, the end of this trunnion in the present instance being square and forming a shank adapted to fit tending inwardly from the outer end'of a crankarni 16, the latter, being provided at its inner end with a collar portion 17 adapted to trunnion to piovid'e'an operating shank, a

to the inner end of an o crating shoulder 2Qiaformed'that is arranged t -1nto a correspondingly shaped recess 15 ex- Ineansof a set screw or ot er suit cooperate with a rear side ol' lhe crank arm 16, the cooparative relation ol these parts serving to sustain the end thrust between the journal 10 and its hearing 12 and thereby preventing disengznrement of these parts.

in order to obtain the operating crank in cooperative relation nith its respective trunnion during il polishing or bnrnisliingroperation, a latch. is provided that serves to lock these parts in cooperative relation W hen the receptacle is inserted into the tank, and also enables the receptacle tobe readily removed fror'n the tanlryvhen the polishing or burnishing operation is completed.

-The latch shown in the present embodiment of the invention comprises a 1 *nl sprin 21 rig-idly fixed at one end by the screws 22 to one side of the crank arm t6, the free end of the spring being provided with a pawl or dog 23 which extends laterally over the outer end 'of the crank arm and theslot formed therein, and serves to cooperate with the angular shank when the latter is operativelv connected to the crank arm, the outer side of thispavvl being preferably beveled, as at 24, to form a cam surface to ()OtlPtlittQ with the shank as t e latter is applied to titer-rank arm, the latch being thereby deflected interally to permit the shank to enter the recess, the pawl on the latch s ')ringing over the shank to lock it therein. The latch beyond the pawl is provided with an operating projection 25 adapted to be grasped by the tingers and retracted and thus rtuease the shank 14 when it is desirable to remove the receptzn cle from the tank. i

'Rotaryrnovement may be imparted to the crank arm inany suitable way, the shalt in,

in the present instance, extending through a stuliing box 26 fitted in the \vallpt the tank, and on that portion of theshal't arranged on the exterior of the tank are titted the light and loose pulleys 27 and 2S, rcsperltivelv, the latter being ada ited to receive a belt that is capable of revolving the crank arm at the proper speed.

In operating the polishing or burnishing machine, construetei in accordance with the resent embodiment of the invention, the

'0 or reeeJtacle for the articles to be p olished is prel erably removed from the tank" in order to facilitate the handling of the jewelry or other articles, this being; accomplished by retracting the latch, lifting the angularshaped shank from its recess in the end. ol the operating crank arm, and as the shoulder 20 is thereby released, the receptacle may be mo ed axially to withdraw the journal por tion 1.0 from the bearing block 12. "llte hinged lid 5 in the recet'itacleenables the jewelryor other articles to be readilyinserted into the receptacle, and as the articles are placed in the rece )tztclc, a suitable abrasive medium is-introrluced into the receptacle which will have a rubbing action on the articles during the operation ol'lne receptacle, steel balls or shot. being used mlvmituceously in many inptances. 'lho receptacle is introduccd into the tank by placing" the journal to at the rear end into the beui'ing'block l2 and introducing the angular shank it into the corwspondinglv shaped recess in the end ol the crank arm, the latter being prel'ernblv in its uppermost position. is the shank enters the recess, the latch will spring behind it and lock it in cooperativerelntion. with the crank arm. The crank is supplied with a suitable cleansing or washing solution to a. depth sullicient to 5Lll.)lItLl} the receptndc during either a portion or thewhole ol its movement, the relative movements ol the receptacle causing the solution to enter and leav the receptacle through the openings provided it. its sides. is rotary movement is imparted to tho shalt. lo, the receptacle containing the articles to be polished is given an oscillator) movement, that is to say, it. will revolve onv an axis coincident with its trunnion us well as on an axis arranged in alinement it h the operating shalt. During the rotary !no\'cinent ol' the receptacle. the ribs arranged on the insides lhereol will serve to hit the articles at. one side of the recepi :cl and permit them to roll or tumble. then-h rn to the bottom of the receptacle, the relatively re\cr-e arrangement ol' the ribs on the sides ol the receptacle causing: the articles In be pilcln-d lirst toward one end thereof and then to :ud the other end, so lhnt the arti le-i ul'c will linhally changing their position so that the abrasive medium and the cleansing solution may reach every surl'acc thcreol. "The in clinntion of the axis ol' the receptacle serves to elevate altermitelv the opposite ends thereof, the ribs serving in a measure to check the rolling ol the articles-trmn one end of th receptacle to the other din-in; cuch t' illi-- lion, causingthose. at the bottom oi lllc muss to remain subshmtinll motionless nhile those toward the top ol' the moss clun their position.

It polishing or lnn'nishing; llli-(lllllt con striu'ted'in accordnm-e with the present invent idn is ver v simple in construction so tlml it may be rcudilv nmnul'umured and sold at a reasonable price and is not liable to need repairs, and it is so constructed that a thor ough polishing or burnishing uclion is given to everv part ol' the. surface ol' cucll nl'liclc,

especially adapting, the machine for ll:-c in polishing jen 'elrfi and other small articles, andthe receptacle or box lor the articles may be quickly removed and returned to the tank bvthe use of the latch connection bctuccil the receptacle and its supporting nlhl o erflllllfl devices, so that the application and removal of the articles is l':n1ilit:tted.

What is claimed is:

l. in a machine for polishih; jenelnv, the combination with a tank adapted to on ain ill) lilo

I trunnion for locking the receptacle in operatlveposition within the tan tain a suitable cleansing solution, of a reopenings being formed in the walls of the nion.

a suitable cleansing solution, of a. receptacle revolubly mounted in, the tank having a plurality of peripheral sides,v and a series of lnwardly projecting ribs secured to eaclr peripheral side of the receptacle, the ribs on some of the sides having a itch toward one end of the receptacle and t ose on the other l sideshaving a pitch toward the other end of the receptacle, the ends of the ribs of the several sides abutting to form continuous zigzag channels extending circumferentially around the inside of the receptacle, screened receptacle and communicating with the said channels and means for oscillating the latter about a longitudinal afiid a transverse axis. 2. In a machine of the character described, the combination with a suitable tank, of a receptacle revolubly mounted therein having a plurality of sides having screened openings therein, oneof the sides being movable to permit access to the interior of the rece tacle, and a series of inWa'rdl projecting ri s ex tending circumferentially about the inside of the receptacle.

3. In a polishing or burnishing machine, the combination with a tank adapted to contain a suitable cleansing solution, of a receptacle having axiallyextending trunnions at o posite ends, an operating shaft j'ournaled in t 1e tank having a crank arm rovided with an eccentrically arranged angu ar socket cooperatin with a corresponding annular end on one oi the trunnions, and a bearin on the tank arranged i 'alinemen't with the said shaft and cooperating with the other trun-' nion of the receptacle, andai latch for locking the said crank arm and its cooperating trun- 4. In a polishing machine of the character described, the combination with a tank adapted to contain a suitable cleansing solution, of "a receptacle adapted to receive the articles tobe polished having axially extending trunnions at the opposite ends thereof, devices arranged witlnn the tankand de-.

tachably cooperating with the trunnions of the: receptacle for revolubly supporting the latter within the. tank, and a spring actuated latch carried by one of the said supporting" devices and cooperating with its respective when the receptacle is introduced therein.

5.1 In a polishing or burnishing machine,

the combination with a tank adapted to corn ceptacle having axially extending trunnions at opposite ends, an operating shaft ournaled in the tank having a crank arrn'" a latch on the latter for detachably locking one of the trunnions thereto, and a suitable bearing for the other trunnion.

6. In a polishing or burnishing the combination with a tank adapted to containca. suitable cleansing solution, of a receptacle having axially extendirn trunnions machine,

at opposite ends, an operating shalt journaled in the tank having a crank arm provided with a recess in one end, a latch adapted to cooperate with one'iof the trunnions on the receptacle for detachably locking the trunnion thereto, and abearing on the tank cooperating with the other trunnion.

7. In a polishing or burnishing machine, the, combination with a tank adapted to con tain a suitable solution, of a receptacle for the articles to be treated having axially arranged trunnions at opposite ends, one of with the bearing by the engagement of the shoulder on the other trunnion and the crank arm- S. In a polishing or burnishing machine, the combination with a tank adaptcd to contain a suitable solution, of a receptacle having rows of zig-zag ribs extending around the interior surface thereof, an operating shaft journaled in the tank having a crank arm.

thereon non-rotatably connected at its end to one end of the receptacle, a latch for lock ing the crankarnrin coo erative relation with the-receptacle, and a bearing arranged substantially inalinement with said shaft and supporting the opposite end of the receptacle.

ln testiinon as my own, I nature in the presence of two witnesses.

CURTIS H. HODGKINS.

that I claim the foregoing Vlitnesses:

DANIEL F. HAWKINS, JAMEs H. LUDHAM, Jr.

ave hereunto ailixed my sig- 

